Alternate Foundation Systems Flashcards

1
Q

Material to be used in foundations should always bear a _______ mark.

A

Certification

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2
Q

What does CSA and 0322 mean in the PWF certification mark?

CSA 0322 PWF-FBT L/B-P/C CCA 2577

A

CSA - Certifying agency

0322 - CSA standard under which the material is certified.

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3
Q

CSA 0322 PWF-FBT L/B-P/C CCA 2577
What does PWF-FBT mean?
What does L/B-P/C mean?

A

PWF-FBT intended use of material

L/b-p/c plant licensed for lumber/plywood

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4
Q

CSA 0322 PWF-FBT L/B-P/C CCA 2577
What does CCA mean?
What does 2577 mean?

A

CCA - preservative used
2577 - first two digits identify the plant
Second tai identify the year the wood was treated

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5
Q

Name two benefits of the PWF foundation?

A

Walls do not require further framing prior to insulating the basement
A carpenter can frame the entire thing by his lonesome

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6
Q

The basement floor and and main level floors must be installed before backfill in a PWF foundation. T or F

A

T

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7
Q

To prevent the accumulation of moisture next to footing, the excavation for wood foundations is usually made ____ than is required and the extra material that is removed is replaced with granular material.

A

Deeper

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8
Q

For wood foundations you would slope the excavation so the gravel will syphon any water into a pump. T or F

A

T

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9
Q

If a footing has been poured directly on undisturbed soil it must have _____ installed to allow accumulating moisture to travel through the footing to the pump.

A

Pipe

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10
Q

Weeping tile is recommended for PWF foundations. T or F

A

F

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11
Q

The most common type of treatment for PWF lumber is?

A

Copper Chrome Arsenate (CCA)

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12
Q

When studs must be cut to length in a PWF foundation, the cut the should be installed at the ____ of the wall.

A

Top

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13
Q

Material used for permanent wood foundations must say ____ on the stamp.

A

PWF

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14
Q

All of the framing material used in permanent wood foundations must be pressure-treated material, if the framing material is below grade or within ____ of grade.

A

(12”) 1’

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15
Q

Any metal hardware in PWF must be _____ -_______. Hot dip galvanized and stainless steel meet this requirement. Connecting hardware must be ______.

A

Corrosion-resistant

Galvanized

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16
Q

In PWF foundations all openings must be _____ since the wall opening must carry the vertical loads from the building above. The window must also have a _____.

A

Doubled

Lintel

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17
Q

____ _____ is used to provide the attachment and lateral support from the top of the PWF wall to the subfloor and to prevent any inside corners of the basement walls from spreading due to soil pressure.

A

Metal strapping

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18
Q

_____ must be installed for plywood edges, strapping at inside corners and baseboard attachment in PWF foundations.

A

Blocking

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19
Q

Sheathing made in PWF foundations is with _____ or _____.

A

Fir or hemlock

20
Q

When sheathing is attached in PWF foundation. All joints must be sealed with _____ and be supported by studs or ______.

A

Caulking

Blocking

21
Q

The PWF foundation is made of load-bearing walls constructed of wood, designed for below grade installation and is suitable for most residential and low rise commercial construction.
T or F

A

T

22
Q

Concrete floors must have a bearing of _____ onto the bottom plate of the wall in order to provide adequate support in a PWF foundation with a wood plate.

A

25 mm 1”

23
Q

PWF systems require poly layer on top of the granular fill. T or F

A

T

24
Q

What is a wood suspended floor system?

It the distance is greater than ____ from the granular fill, untreated materials may be used for the joists and plywood.

A

A sleeper floor that is suspended above the granular fill on stub walls and ledgers.

300 mm

25
Q

______ ______ ______ must be nailed to the inside face of the PWF wall studs and bent flat across the top plate at the spacing required on the plain details and above each side if windows in the PWF walls.

A

Galvanized metal straps

26
Q

Joists in the middle should be cut end to end in a PWF foundation and not lapping.
T or F

A

T

27
Q

Polyethylene should extend from finish grade to the bottom of the footing.

T or F

A

T

28
Q

PWF foundations must be back filled with ____ mm thick granular material up to with _______ of finished grade.

A

300 mm

300 mm

29
Q

What is the recommended thickness of sub-base material needed under a slab-on-ground?

A

125 mm

30
Q

How are insulated concrete forms attached to the footings?

A

Vertical sections of rebar

31
Q

The sides of a door buck should be cut —- short, so that if the forms settle or compress due to the weight of the wet concrete in ICF form systems.

A

12 mm

32
Q

Once ICF fibre reach _____ m in height , bracing must be added.

A

1.2 m

33
Q

Concrete slump in ICF should be ____ to _____

A

100-150 mm

4-6

34
Q

When filling the ICF forms the lifts should be no more than ____?

A

1.2 m (4’) any higher could result in immediate form failure.

35
Q

The below-grade portion of forms must be covered with what?

A

Approved damp proofing or waterproofing material

36
Q

Installing siding onto ICF form is done by using screws to attach it to the embedded plastic strips in the block style of forms and adding what?

A

Vertical metal strips screwed to the tie pads

37
Q

For concrete blocks, rebar should be atleast 200 mm increments with a max span of 1.2 m instead of a key way.
T or F

A

T

38
Q

In block foundations. Most openings are ___ mm oversize in width because the edges of the opening are not mortared

A

12 mm

39
Q

A block foundation wall typically has a _____ _____ (continuous mortar-or concrete filled cavity) around the top of the wall.

A

Bond beam

40
Q

The bond beam is reinforced with rebar and has the anchor bolts embedded in it to provide attachment for the sill plate and floor system. T or F

A

T

41
Q

Support for floor beam ends is often provided in a block foundation by using hollow, widened blocks, which are filled with concrete to form a _____.

A

Pilaster.

42
Q

The outside of block foundations should be _____ with mortar and the bottom ______ must be coved to fill the corner and direct the water away. A moisture bearer must be applied after the _____.

A

Parted
Parging
Parging

43
Q

What are the 3 types of footing acceptable for a PWF system?

A

A. Wood footing on granular fill
B. Concrete footing on granular fill
C. Concrete footing on undisturbed soil

44
Q

How do you frame an opening ins PWF wall to resist the soil pressure placed on it?

A

Joist hangers.

45
Q

What are the 3 types of basement floor systems commonly used for PWF systems?

A

Concrete floor, wood on sleepers and wood suspended.

46
Q

What are common types of insulated concrete forms?

A

Block, Planck, or panel